YBOTECH HS-7920A automatic headspace sampler has 20-positions that is simple and convenient to operate, with the ability to adjust the sample injection volume according to the concentration level of the samples being analyzed. It is also widely compatible with all major international brands of GC and GCMS.
Feature
- Automatically runs 20 samples without operator’s supervision.
- Self-check on startup, fault alarms and automatic sample tray positioning.
- Equipped with a 7-inch LCD touch screen,user-friendly.
- Includes an external carrier gas adjustment system, allowing headspace sampling analysis without any modifications to the GC instrument; also compatible with the original instrument’s carrier gas.
- Utilizes pressure-balanced injection technology to achieve narrow chromatographic peak shapes in headspace sampling.
- Sample transfer tubes and injection valves have automatic backflushing functions to prevent cross-contamination between different samples.
- For the analysis of active substances, an optional elastic quartz tube can be used as the sample transfer tube.
- Allows adjustment of the sample injection volume based on the concentration level of the samples being analyzed.
- Easy to replace injection needles, compatible with all domestic and international GC injection ports.
- Compatible with all imported and domestic GC and GCMS instruments.
Application Scope (Partial Examples)
The AHS-7900A fully automatic headspace sampler is suitable for detecting volatile organic compounds (VOCs) in environmental samples with concentrations as low as ppb levels. It is primarily used for VOC analysis in water and soil, but can also be applied to the analysis of volatiles in food products. The AHS-7900A complies with the following standards:
- HJ 679-2013: Soil and Sediments – Determination of Acrolein, Acrylonitrile, and Acetonitrile by Headspace-Gas Chromatography.
- HJ 741-2015: Soil and Sediments – Determination of Volatile Organic Compounds by Headspace/Gas Chromatography.
- GB/T 5750.8-2006: Standard Test Methods for Drinking Water – Organic Indicators.
- GA/T 842-2019: Testing Methods for Blood Alcohol Content.
- HJ 1067-2019: Water Quality – Determination of Benzene Series Compounds by Headspace/Gas Chromatography.
- HJ 642-2013: Soil and Sediments – Determination of Volatile Organic Compounds by Headspace/Gas Chromatography-Mass Spectrometry.
Product Specification
| Model | HS-7920A |
| Bottole Position | 20 |
| Bottle Volume | 10ml / 20ml |
| Sample Area Temperature Control Range | Room temperature ~ 150°C, adjustable in 1°C increments |
| Sample Transfer Line Temperature Control Range | Room temperature to 200°C, adjustable in 1°C increments |
| Valve Sampling System Temperature Control Range | Room temperature to 200°C, adjustable in 1°C increments |
| Temperature Control Accuracy | < ±0.1°C |
| Temperature Control Gradient | < ±0.1°C |
| Sample Injection Pressure Range | 0 to 0.4 MPa (continuously adjustable) |
| Repeatability | RSD ≤ 1% (ethanol in water at 200 ppm) |
| Backflush Cleaning Flow Rate | 0 to 400 ml/min (continuously adjustable) |
| Dimension | 400 mm × 350 mm × 510 mm |
| N.W. | Approximately 27 kg |
Request for quotation